Constant-temperature-fluid circulation device

Abstract

A device to mount plural number of condenser sections, including respective condenser sections of an inflow conduit flowing into coolant therein, an outflow conduit flowing out of coolant therefrom, a connection tube communicating between the inflow conduit and the outflow conduit, and plural number of condenser tubes for connecting the inflow conduit and the outflow conduit and fins attached to the condenser tube. The plural number of the condenser sections are mounted every inflow conduits and every outflow conduits directing to the same direction, leeward side positioned outflow conduits of the condenser sections and windward side positioned inflow conduits of the condenser sections being connecting the connection tube, with series connection, thereby coolant within the condenser tubes of the plural number of the condenser sections flows in the same direction.

The invention claimed is: 
     
       1. A constant-temperature-fluid circulation device mounted within a housing, the device comprising:
 a constant-temperature liquid circuit to supply thermally regulated constant-temperature liquid to a load; and 
 a refrigeration circuit to regulate a temperature of the constant-temperature liquid by heat exchanging between the constant-temperature liquid and coolant, 
 the refrigeration circuit comprising:
 a compressor to form high-temperature and high-pressure gaseous coolant by compressing gaseous coolant, 
 an air-cooled condenser to generate high-pressure liquid coolant by cooling coolant in gas-phase fed from the compressor, 
 an expansion valve to form low temperature and low pressure liquid coolant by expanding the high-pressure liquid coolant supplied from the condenser, and 
 an evaporator to supply low pressure gaseous coolant to the compressor produced by the constant-temperature liquid being evaporated by making heat exchange with the low temperature and low pressure liquid coolant in a heat exchanging device, 
 the condenser comprising a fan shroud installed with a fan generating coolant stream, and a condenser cover functioning as a mounting stay connected to the fare shroud at leeward side, 
 
 the condenser cover comprising left and right cover members and plural mounting portions being formed in the respective left and right cover members so as to be positioned at windward side sand leeward side, and plural condenser sections being mounted on the mounting portions toward a stream of cooling wind, 
 the plural condenser sections comprising inflow conduits to flow into coolant, outflow conduits to flow out coolant and condenser tubes to communicate between the inflow conduits and the outflow conduits, the condenser tubes communicating between the inflow conduit and the outflow conduit, fins mounted to the condenser tube, and stays mounted toward orthogonal direction at both sides and extending in parallel with the condenser tubes, and the condenser sections being mounted on the condenser cover by fixing the stays to the mounting portions of the left and right cover members of the condenser cover with screws, 
 the plural condenser sections being integrally disposed every inflow conduits and every outflow conduits directed to a same side of the housing, the inflow conduit disposed at a most leeward side being connected to the compressor by an inflow coolant conduit, the inflow conduit disposed at a most windward side being connected to the expansion valve by an outflow coolant conduit, and the outflow conduit of the condenser positioned at the leeward side being connected to the windward side inflow conduit of the condenser section by a connection tube, the plural condenser sections being arranged in series, and coolant in the condenser tubes of the plural condenser flowing in a same direction. 
 
     
     
       2. The constant-temperature-fluid circulation device according to  claim 1 , wherein the adjacent condenser sections are disposed shifted from each other toward the direction of the condenser tubes. 
     
     
       3. The constant-temperature-fluid circulation device according to  claim 1 , wherein the condenser section placed at the leeward side of the cooling wind is protruded toward the inflow conduit more than the condenser section at the windward side. 
     
     
       4. The constant-temperature-fluid circulation device according to  claim 1 , wherein the condenser section is disposed vertically to place the inflow conduit on an upper side and the outflow conduit on lower side to flow coolant downwardly in the longitudinally extended condenser tube. 
     
     
       5. The constant-temperature-fluid circulation device according to  claim 1 , wherein the plural condenser sections are disposed for the inflow conduit on one side of the condenser cover and the outflow conduit on an other side of the condenser cover, such that the adjacent outflow conduit and inflow conduit connected to the condenser cover are connected each other by the connection tube disposed outside of the condenser cover from one side to the other side. 
     
     
       6. The constant-temperature-fluid circulation device according to  claim 5 , wherein the adjacent condenser sections are mounted to the condenser cover shifted from each other toward the longitudinal direction of the condenser tubes. 
     
     
       7. The constant-temperature-fluid circulation device according to  claim 6 , wherein the condenser section is positioned leeward side of cooling wind protruding on the side of inflow conduit more than the windward side condenser section. 
     
     
       8. The constant-temperature-fluid circulation device according to  claim 5 , wherein the condenser cover is positioned vertically, the inflow conduits of the plural condenser section are positioned transversally at the upper position of the condenser cover, the outflow conduits positioned lower than the condenser cover, the condenser tubes are vertically disposed within the condenser cover, connection ports are formed on one end of the inflow conduit and the outflow conduit to connect the inflow side coolant conduit, outflow side coolant conduit and the connection tribes being open outside the condenser cover.